..##.#.#..                                          ####..#.##
.#.#####.#                                          ...#.###.#
###....##.                                          ..###..###
..#...#.##                                          .#..#.#...
.##..###.#                                          ##.####...
#.#.#..##.                  rails                   .##...#...
#####.#.##                                          #.#..##..#
....####.#                                          ###.#.#.#.
...#...##. ######################################## ..#######.
..##..#.#.                                          .#......#.
.#.#.####. ######################################## ##.....##.
#####...#.                                          .#....#.#.
....#..###                                          ##...#####
...##.#..# trains  are  so  constructed  that  they .#..#....#
..#.###.## have to follow  a set path. this path is ##.##...##
.###..##.. called a  "railway", which  is comprised .##.#..#.#
#..#.#.#.# of two metal rails, hence its  nickname. #.###.####
#.#######.                                          ##..##....
##......#. because  the  low friction  between  the .#.#.#...#
.#.....##. wheels of the train and the rail  metal, ######..#.
##....#.#. there are limits  for how acute  a curve .....#.##.
.#...####. can be, and  even  more so for  how much ....###.##
##..#...## the  ground  under  the   rails  can  be ...#..##.#
.#.##..#.# sloped.  thus a railway is often not led ..##.#.##.
###.#.###. on top of hills, rather  through them in .#.####.#.
..####..#. tunnels   (if  they   are   large),   or ###...####
.#...#.##.            artificial chasms.            ..#..#...#
##..###.#.                                          .##.##..##
.#.#..#### there will be trees on  the side of  the #.##.#.#..
####.#.... rails,  but not too close, or they  will ##.#####..
...###.... be cut  down  by  the railway  janitors. .##....#.#
..#..#...# there  will  be  plains, and  bodies  of #.#...####
.##.##..#.                  water.                  ###..#...#
#.##.#.##.                                          ..#.##..##
##.####.## trains go by  day and  by  night.  along .###.#.#..
.##...##.#       the way, there is information      #..#####.#
#.#..#.### scattered, often put  on  top of  poles, #.#....###
###.###... to  be interpreted by the train drivers. ###...#...
..##..#..# different  parts  of  the  railway  have ..#..##..#
.#.#.##.#.         different speed limits.          .##.#.#.##
#####.###.                                          #.######.#
....##..## sometimes, trains have to stop and  wait ##.....##.
...#.#.#.. for something to happen, far away.  this .#....#.#.
..######.. is  signaled by  red  or  green  lights. ##...####.
.#.....#..                                          .#..#...#.
##....##.#                 ########                 ##.##..##.
.#...#.##.                                          .##.#.#.##
##..###.#. many people follow  the  rails  by foot. #.######.#
.#.#..#### often  this  proves to  be  the  shorter ##.....##.
####.#.... path between  two  points.  however this .#....#.#.
...###...# is  frowned  upon,  and  very   impolite ##...#####
..#..#..#.        toward the train drivers!         .#..#....#
.##.##.###                                          ##.##...##
#.##.##...                                          .##.#..#.#
##.##.#...                                          #.###.###.
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##.#.##.##                                          #########.